Final answer:
The statement about nickelodeons is false; they were simple, affordable early movie theaters for the working class, not lavish theaters for the middle class.
Step-by-step explanation:
The statement regarding nickelodeons being lavish theaters built after 1915 that signaled the rise of film from working-class amusement to middle-class prominence is false. Nickelodeons were actually simple, early movie theaters that emerged in the early 20th century, offering films and sometimes variety acts at an affordable price, typically a nickel. They were popular primarily among the working class. The transition to more opulent 'movie palaces' occurred in the 1920s due to the increased prosperity and desire for more sophisticated forms of entertainment, which catered more to middle-class audiences and allowed for the expansion of the film industry.